Bolted connection for bedstead-corner locks



July 3, 1928.

F. KUSTERLE BOLTED CONNECTION FOR BBDSTEAD CORNER LOCKS Filed Aug. 21. 1922 IIHIIHIIHII Patented July 3, 1928.

UNITED STATES PATENT OFFICE.

FRANK KUSTERLE, OFKENOSHA, WISCONSIN, ASSIGNOR TO,SIMMONS COMPANY, or

KENOSHA, WISCONSIN, A CORPORATION OF DELAWARE. V t

BdLTED CONNECTION ron EnsTEAn-coRNE R LOCKS.

Application filedAugust 21, 1922. Serial No. 583,386.

My invention relates to improvements in bolted connection for bedstead corner locks, and has particular reference to an improve ment upon the type of connectlon such as is set forth and. described in the United States Patent to Charles H. Busch, No. 1,397,203, issued Nov. 15, 1921, or in my previous United States Patent No-1,411,362, is-

. vention will be pointed out in the following description and in thereto. I V

In the drawings which describe my invention as applied to a corner connection of the type shown in the Busch patent above rerefercrd to:

Fig. 1 is an elevation of the complete corner connection, 7

Fig. 2 is a side elevation of the connection with the rail portion removed therefrom, Fig. 3 is a section taken on the line 3-3 of Fig. 2,

Fig. 4 is an end elevation of th'e parts shown in Fig. 2, c Fig. 5 is asection taken on the line 5-5 ofFig. 1, and

Fig. 6 is a side view of the connecting bolt before assembly.

Referring to the drawings, 10 represents the side rail of the spring bottom of a .threepiece bedstead, as shown the Buschpatent, above referred to,'sa1d side rail 10 being equipped with stamping 11 and Y wedge pin 12, as previously described in sald Busch patent. I Said parts 11 and 12 are, of course, permanently affixed to the rail 10 and are removable therewith from the other member of the connection with which the pin 12 is wedgingly engaged.

Saidother member of the interwedgingly connected parts, as in the Busch patent, comprises a steel stamping 13 permanently se the claims appended cured to the side of the hollow post 14. As

shown best in Figs. 3 and5, the post part 13 of the interwedging connection is formed from steel plate material so as to be U-shaped in plan, the yoke of the U being placed parallel with and against the side wall 16 of the post. In the present instance, because the metal for which the est 14 is made is comparatively thin, I pre er to interpose between parts 15 and 16 a reinforcing plate 17 having a pair of flanges "or bca ds 18 extending down its edges and interlocking with the corners of the post 14, thereby preventing the reinforcing the post. i

The limbs 19 and 20 of the U-shaped post part 130f the wedging connection are-made with usual inclined slots or notches, as shown at21 to cooperate with the wedge pin 12 of the rail part 11 and are suitably spaced apart so as to embrace and interlock with the flattened sides 22 of the head23 of a bolt 24. a

The inner end of the bolt 24 is threaded to fit a nut 25 located on the inside of the post, which nut 25 is of substantial width and extends longitudinally or vertically in the post a suflicient distance to furnish the desired reinforcing effect in conjunction with reinforcing plate 17 on the outside of the post. It will be observed that because of the vertical length of nut 25 same cannot turn inside of the post :when the bolt or screw 24 is rotated, said screw 24 and nut 25comprising a pair of interthreaded members which, when being relatively rotated,

plate 17 from rotating on serve to tighten or clamp the post part or but remain permanently in position after they have been initially assembled on the post. Such assembly is elfected in the following manner.

The nuts or tapped liners 25 are properly located in position in register with the aperture in the wall 16 of the post and the plate 17 is located with its aperture also in register with the threaded aperture in nut 15.

The bolt or screw 24 is then inserted through been screwed home and the parts of the device thus securely clamped together, the hook member 13 is, if necessary turned to bring the slot on the upper side with the arms vertical so that an extension lug 26 depend ing from the yoke of the hook member 13 is located above a circular aperture 27 punched in reinforcing plate 17. Then, by means of a punch or other suitable tool, the lug 26 is bent down into the hole 27 as indicated best in Fig. 2 so that the U-shaped post part i 13 is thereby locked securely against rotation and will thereafter maintain its clamped and vertical position.

In order to insure that the slot 21 shall be upwardly presented and with the stamping 13 in alignment with the post when the bolt 24 has been screwed home, I prefer to make said bolt 24 with the endsof the points 28 of the head portion thereof somewhat hookshaped as shown in Fig. 6, the shoulder between the neck and head of the bolt being somewhat undercut. The effect is to cause the points 28 of the bolt to make contact with the yoke portion 15 of the U-shaped member 13, before such yoke portion 15 is engaged by the inner portion of the head. This permits a slight yielding or bending of the points or wings of bolt head 23 if it is found necessary to turn the stampin through a considerable arc of movement after the bolt is apparently tight, for the purpose of bringing the U-shaped member into its proper vertical position.

It will be observed that even though there be a slight slackness of the screw 24 at the time of assembly, or should such slackness develop subsequently, the parts are, nevertheless, locked securely together and cannot become lost or misplaced. Also, such slackness is immediately taken up when the rail bar is applied to the post for the reason that the edges 29 of stamping 11 engage the outside of reinforcing'plate 17, while pin 12 engages in the inclined slots 21 thus at all times causing nut to be tightly drawn up against the inside surface of the post wall.

The described detailsof construction and operation are merely illustrative of a preferred application of my invention, the scope of which should be determined by reference to the appended claims, said claims being construed as broadly as possible, consistent with the state of the art.

I claim as my invention:

1. In a structure of the class described, a hollow post, a hook member, a pair of interthreaded members respectively provided on the inside and on'the outside of the post, the wall of said post being provided with an aperture through which said intert'h-readed members communicate, the inner member being anchored against rotation ,and the-outer member being keyed to said hook member whereby rotation thereof effects relative rotation between said inter-threaded members and thereby forces said hook membertoward the post, and means forlocking said hook member against rotationon the post.

2. In a structure of the class described, a hollow post provided with an aperture,.a U-shaped member, a pair of interthreaded members respectively provided on the inside and on the outside of the post, said members communicating through said aperture, the inner member being anchored against rotation and the outer member being embraced by said U-shaped member connected and thereto so that rotation of said U-shaped member effects relative rotation between.

said inter-threaded members,1and means for locking said U-shaped member against rotation.

3. In a structure of the class described, a hollow post provided with an aperture, a hook member, a pair of interthreaded members respectively provided on the inside and on the outside of said post and communicating through said aperture, said inside member being locked against rotation and said outside member being keyed .to said hook member whereby rotation of the hook member efi'ects relative rotation between said interthreaded members "to force said hook member towards the post, areinforcing plate interposed between said postand'hook mem ber, means for preventing relative rotation between said plate and post, and means for preventing relative rotation between said plate and hook member comprising a lug on one of said members adapted to be offset into locking engagement with the other.

4. In a structure of the class described, a hollow post provided with an aperture, a hook member, a pairof interthiieaded members respectively rovided on the inside and on the outside of said post and communieating through said aperture, said inside member being locked against rotation and said outside member being keyed to said preventing relative rotation between said hook member whereby rotation of the hook plate and hook member comprising a lug on 10 member effects relative rotation between said saidhook member adapted to be offset into intert-hreaded members to force said hook looking engagement with said plate, said member towards the post, a reinforcing plate plate being provided with an aperture for interposed between said post and hook memreceiving said lug in such engagement.

ber, means for preventing relative rotation between said plate and post, and means for FRANK KUSTERLE. 

